Injection molding device

Abstract

The utility model relates to the technical field of injection molding machines, and discloses an injection molding device which comprises a storage barrel, a rotating shaft, a driving structure and an auxiliary structure, a discharging nozzle is fixed at the bottom of the storage barrel, a supporting frame is fixed on the outer side of the storage barrel, the rotating shaft is rotatably connected with the interior of the storage barrel, and a through hole is formed in the rotating shaft. A connecting rod is slidably arranged in the through hole, a fixing frame is fixed to the bottom of the connecting rod, a scraping plate is fixed to the outer side of the fixing frame, located on the inner side of the discharging nozzle and slidably connected with the inner side of the discharging nozzle, the driving structure is located on the storage barrel and used for driving the connecting rod to rotate, and the auxiliary structure is located in the storage barrel and used for pushing feed liquid in the storage barrel to enter the discharging nozzle; according to the utility model, the problem that molten plastic stored in the injection molding machine is injected into the mold cavity from the discharge nozzle, is left on the inner wall of the discharge nozzle, and is condensed into blocks after being not scraped in time, so that the discharge of the discharge nozzle is influenced is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, and particularly relates to an injection device. Background Art

[0002] An injection molding machine, also known as an injection molding machine or an injection machine, is the main molding equipment for making various shaped plastic products by using a plastic molding die with thermoplastic or thermosetting plastics. It is divided into vertical, horizontal, and all-electric types. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity.

[0003] A discharge nozzle is provided at the bottom of the injection molding machine. The molten plastic stored in the injection molding machine is injected into the mold cavity through the discharge nozzle. A lot of molten plastic will remain on the inner wall of the discharge nozzle. If not scraped in time, it will condense into blocks, thus affecting the discharge of the discharge nozzle. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem that the molten plastic stored in the injection molding machine mentioned in the above background art is injected into the mold cavity through the discharge nozzle, and the molten plastic will remain on the inner wall of the discharge nozzle. If not scraped in time, it will condense into blocks, thus affecting the discharge of the discharge nozzle.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An injection device, which relates to the technical field of injection molding machines, includes a storage barrel, a rotating shaft, a driving structure, and an auxiliary structure. A discharge nozzle is fixed at the bottom of the storage barrel, and a support frame is fixed on the outside of the storage barrel. The rotating shaft is rotationally connected to the inside of the storage barrel. A through hole is provided in the rotating shaft, and a connecting rod is slidably provided in the through hole. A fixing frame is fixed at the bottom of the connecting rod, and a scraping plate is fixed on the outside of the fixing frame. The scraping plate is located inside the discharge nozzle and is slidably connected to the inner side of the discharge nozzle. The driving structure is located on the storage barrel and is used to drive the connecting rod to rotate. The auxiliary structure is located inside the storage barrel and is used to push the liquid material in the storage barrel into the discharge nozzle. The utility model scrapes the liquid material on the inner wall of the discharge nozzle by arranging a rotatable connecting rod in the discharge nozzle and fixing a scraping plate on the outside of the connecting rod.

[0007] Preferably, the driving structure includes a driving motor. An installation frame is fixed at the top of the storage barrel, and a fixing cylinder is fixed on the installation frame. The driving motor is fixed on the fixing cylinder. The top of the connecting rod penetrates through the top of the storage barrel. A rotating cylinder is provided in the fixing cylinder. The top of the rotating cylinder is fixed to the output end of the driving motor, and the bottom end is located inside the rotating shaft and is rotationally connected to the rotating shaft. An embedding cavity is provided in the rotating cylinder. A fixing rod is fixed at the top of the connecting rod, and the fixing rod is slidably and fittingly embedded in the embedding cavity, so as to drive the scraping plate to rotate on the inner wall of the discharge nozzle and scrape the liquid material on the inner wall of the discharge nozzle.

[0008] Preferably, a communicating pipe is fixed to the outer side of the rotary drum. The inside of the communicating pipe is communicated with the embedded cavity. The communicating pipe is located inside the fixed cylinder. A slider is slidably arranged inside the communicating pipe. One side of the slider away from the rotary drum is fixed with a pressing rod. A first compression spring is fixed inside the rotary drum. The movable end of the first compression spring is fixed to the bottom of the fixed rod. Limiting blocks are evenly fixed inside the fixed cylinder. A ball is rotatably arranged at one end of the pressing rod away from the slider. A second compression spring is arranged on the pressing rod. One end of the second compression spring is fixed to the communicating pipe, and the other end is fixed to the pressing rod, which is used to drive the connecting rod to move up and down, thereby driving the fixed frame and the scraper to move up and down, stirring and mixing the liquid in the discharge nozzle, and facilitating the discharge of the liquid.

[0009] Preferably, a first guiding surface is arranged at one end of the slider close to the embedded cavity, and a second guiding surface is arranged at the top of the fixed rod, which is convenient for the slider to press the fixed rod.

[0010] Preferably, a roller is rotatably arranged at one end of the slider close to the embedded cavity, which is convenient for the slider to move on the second guiding surface.

[0011] Preferably, an arc surface is arranged on the inner side of the limiting block, which is convenient for the ball to move onto the limiting block.

[0012] Preferably, the auxiliary structure includes an auxiliary motor. An auxiliary frame is fixed to the top of the storage barrel. The auxiliary motor is fixed on the auxiliary frame. The output end of the auxiliary motor is fixed with a main gear. A sub-gear is fixed to the outer side of the top of the rotating shaft. The sub-gear is meshed and connected with the main gear. A spiral plate is fixed to the outer side of the rotating shaft to mix and press down the liquid in the storage barrel.

[0013] Preferably, a ring-shaped frame is arranged at the bottom of the connecting rod. The top of the ring-shaped frame is fixed to the fixed frame, which can push down the liquid on the inner wall of the discharge nozzle.

[0014] Preferably, inclined surfaces are arranged on both the upper and lower sides of the ring-shaped frame, which is convenient for scraping the liquid on the inner wall of the discharge nozzle.

[0015] [[ID=2l]]Preferably, the storage barrel is conical, which is convenient for the liquid to enter the discharge nozzle.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] By arranging a rotatable connecting rod in the utility model, the connecting rod is driven to rotate by a motor, and then the scraper fixed to the outside of the connecting rod is driven to rotate. The liquid on the inner wall of the discharge nozzle is scraped off by the scraper, and the liquid adhering to the inner wall of the discharge nozzle is scraped off in time;

[0018] Through the up and down movement of the connecting rod, the scraper and the ring-shaped frame can be driven to move up and down in the discharge nozzle, mixing the liquid in the discharge nozzle, facilitating the feeding and scraping off the liquid on the inner wall of the discharge nozzle at the same time. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the accompanying drawings required for use in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0020] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 Schematic diagram of the internal structure of the storage barrel of the present utility model;

[0022] Figure 3 Schematic diagram of the partial cross-section of the driving structure of the present utility model;

[0023] Figure 4 Schematic diagram of the partial cross-section of the rotating drum part of the present utility model;

[0024] Figure 5 For Figure 4 The enlarged view at position A in

[0025] Explanation of figure numbers: 1. Storage barrel; 2. Discharge nozzle; 3. Support frame; 4. Rotating shaft; 5. Connecting rod; 6. Fixed frame; 7. Scraper; 8. Driving structure; 9. Auxiliary structure; 10. Driving motor; 11. Mounting frame; 12. Fixed cylinder; 13. Rotating drum; 14. Embedded cavity; 15. Fixed rod; 16. Connecting pipe; 17. Slide block; 18. Pressing rod; 19. First compression spring; 20. Limiting block; 21. Ball; 22. Second compression spring; 23. First guiding surface; 24. Second guiding surface; 25. Roller; 26. Arc surface; 27. Auxiliary motor; 28. Auxiliary frame; 29. Main gear; 30. Sub-gear; 31. Spiral plate; 32. Ring-shaped frame. Detailed implementation manners

[0026] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious deformations. The basic principles defined in the following description can be used in other implementation schemes, deformation schemes, improvement schemes, equivalent schemes, and other technical schemes without departing from the spirit and scope of the present utility model.

[0028] Those skilled in the art should understand that in the disclosure of this utility model, the orientations or positions indicated by the terms "longitudinal", "lateral", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or position relationships shown in the drawings. These are only for the convenience of simplifying the description of this utility model and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting this utility model.

[0029] It can be understood that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of one component can be one, while in other embodiments, the number of this component can be multiple. The term "a" should not be construed as a limitation on the quantity. Embodiment

[0030] Please refer to Figures 1 - 5 , an injection molding device, including a storage barrel 1, a rotating shaft 4, a driving structure 8 and an auxiliary structure 9. A discharge nozzle 2 is fixed at the bottom of the storage barrel 1, a support frame 3 is fixed on the outside of the storage barrel 1, the rotating shaft 4 is rotatably connected to the inside of the storage barrel 1, a through hole is provided in the rotating shaft 4, a connecting rod � is slidably provided in the through hole, a fixing frame 6 is fixed at the bottom of the connecting rod 5, a scraping plate 7 is fixed on the outside of the fixing frame 6, the scraping plate 7 is located inside the discharge nozzle 2 and is slidably connected to the inner side of the discharge nozzle 2. The driving structure 8 is located on the storage barrel 1 and is used to drive the connecting rod 5 to rotate. The auxiliary structure 9 is located inside the storage barrel 1 and is used to push the liquid material in the storage barrel 1 into the discharge nozzle 2. In this utility model, by providing a rotatable connecting rod 5 inside the discharge nozzle 2 and fixing a scraping plate 7 on the outside of the connecting rod 5, the liquid material on the inner wall of the discharge nozzle 2 is scraped off.

[0031] The driving structure 8 includes a driving motor 10. An installation frame 11 is fixed at the top of the storage barrel 1, a fixing cylinder 12 is fixed on the installation frame 11, the driving motor 10 is fixed on the fixing cylinder 12. The top of the connecting rod 5 penetrates through the top of the storage barrel 1. A rotating cylinder 13 is provided inside the fixing cylinder 12. The top of the rotating cylinder 13 is fixed to the output end of the driving motor 10, and the bottom end is located inside the rotating shaft 4 and is rotatably connected to the rotating shaft 4. An embedding cavity 14 is provided inside the rotating cylinder 13. A fixing rod 15 is fixed at the top of the connecting rod 5, and the fixing rod 15 is slidably and fittingly embedded inside the embedding cavity 14, which is used to drive the scraping plate 7 to rotate on the inner wall of the discharge nozzle 2 and scrape off the liquid material on the inner wall of the discharge nozzle 2.

[0032] The storage barrel 1 is conical, which is convenient for the liquid material to enter the discharge nozzle 2.

[0033] Working principle: The driving motor 10 drives the rotation, and then the rotation of the fixed rod 15 is driven by the engagement of the inner cavity 14 of the rotating cylinder 13 and the fixed rod 15, so as to drive the connecting rod 5 fixed to the fixed rod 15 to rotate. The connecting rod 5 drives the scraper 7 to rotate together through the fixing bracket 6, and the scraper 7 is used to scrape the liquid on the inner wall of the discharge nozzle 2, timely scrape the liquid adhering to the inner wall of the discharge nozzle 2, and prevent the liquid from coagulating into blocks. Embodiment

[0034] Please refer to Figures 3 - 5 , this embodiment further describes the first embodiment: A communicating pipe 16 is fixed on the outside of the rotating cylinder 13. The inside of the communicating pipe 16 is communicated with the cavity 14. The communicating pipe 16 is located inside the fixed cylinder 12. A slider 17 is slidably arranged inside the communicating pipe 16. One side of the slider 17 away from the rotating cylinder 13 is fixed with a pressing rod 18. A first compression spring 19 is fixed inside the rotating cylinder 13. The movable end of the first compression spring 19 is fixed to the bottom of the fixed rod 15. A plurality of limiting blocks 20 are evenly fixed inside the fixed cylinder 12. A ball 21 is rotatably arranged at one end of the pressing rod 18 away from the slider 17. A second compression spring 22 is arranged on the pressing rod 18. One end of the second compression spring 22 is fixed to the communicating pipe 16, and the other end is fixed to the pressing rod 18, which is used to drive the connecting rod 5 to move up and down, so as to drive the fixing bracket 6 and the scraper 7 to move up and down, stir and mix the liquid in the discharge nozzle 2, and facilitate the discharge of the liquid.

[0035] A first guiding surface 23 is arranged at one end of the slider 17 close to the cavity 14, and a second guiding surface 24 is arranged at the top of the fixed rod 15, which is convenient for the slider 17 to press the fixed rod 15.

[0036] A roller 25 is rotatably arranged at one end of the slider 17 close to the cavity 14, which is convenient for the slider 17 to move on the second guiding surface 24.

[0037] An arc surface 26 is arranged inside the limiting block 20, which is convenient for the ball 21 to move onto the limiting block 20.

[0038] A ring-shaped frame 32 is arranged at the bottom of the connecting rod 5. The top of the ring-shaped frame 32 is fixed to the fixing bracket 6, which can push down the liquid on the inner wall of the discharge nozzle 2.

[0039] Inclined surfaces are arranged on both the upper and lower sides of the ring-shaped frame 32, which is convenient for scraping the liquid on the inner wall of the discharge nozzle 2.

[0040] Implementation principle: When the rotary drum 13 rotates, it drives the communicating pipe 16 to rotate together, thereby driving the pressure lever 18 and the ball 21 to rotate together within the fixed cylinder 12. The ball 21 reaches the limit block 20 through the arc surface 26. During this process, the ball 21 presses the pressure lever 18, and the pressure lever 18 presses the slider 17 into the embedding cavity 14. The slider 17 exerts pressure on the second guiding surface 24 through the roller 25, thereby pressing down the fixed rod 15, and then driving the connecting rod 5 to press down. When the ball 21 leaves the limit block 20, under the action of the second compression spring 22, the slider 17 returns to the initial position, and under the action of the first compression spring 19, the connecting rod 5 returns to the initial position, thus realizing the up-and-down movement of the connecting rod 5. Through the up-and-down movement of the connecting rod 5, the scraper 7 and the annular frame 32 can be driven to move up and down within the discharge nozzle 2, mixing the liquid in the discharge nozzle 2, facilitating the discharging and scraping off the liquid on the inner wall of the discharge nozzle 2 at the same time. Embodiment

[0041] Please refer to Figure 2 and Figure 3 For a further description of the first embodiment, the auxiliary structure 9 includes an auxiliary motor 27. An auxiliary frame 28 is fixed to the top of the storage barrel 1, the auxiliary motor 27 is fixed on the auxiliary frame 28, a main gear 29 is fixed to the output end of the auxiliary motor 27, a sub-gear 30 is fixed to the outer side of the top of the rotating shaft 4, and the sub-gear 30 is meshed and connected with the main gear 29. A spiral plate 31 is fixed to the outer side of the rotating shaft 4.

[0042] Implementation principle: The auxiliary motor 27 drives the main gear 29 to rotate, and then drives the rotating shaft 4 to rotate through the meshing of the main gear 29 and the sub-gear 30, thereby driving the spiral plate 31 to rotate. The spiral plate 31 mixes the liquid and at the same time presses the liquid in the storage barrel 1 into the discharge nozzle 2.

[0043] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the drawings are only examples and do not limit the present invention. The object of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and described in the embodiments. Without departing from the above principles, any deformation or modification of the embodiments of the present invention is possible.

Claims

1. An injection molding device, comprising Storage bucket (1), a discharge nozzle (2) is fixed to the bottom of the storage bucket (1), and a support frame (3) is fixed to the outside of the storage bucket (1), characterized in that: A rotating shaft (4), the rotating shaft (4) is rotatably connected to the inside of the storage bucket (1), a through hole is provided in the rotating shaft (4), a connecting rod (5) is slidably provided in the through hole, a fixing frame (6) is fixed to the bottom of the connecting rod (5), and a scraping plate (7) is fixed to the outside of the fixing frame (6). The scraping plate (7) is located inside the discharge nozzle (2) and is slidably connected to the inner side of the discharge nozzle (2); A driving structure (8), the driving structure (8) is located on the storage bucket (1) and is used to drive the connecting rod (5) to rotate; An auxiliary structure (9), the auxiliary structure (9) is located inside the storage bucket (1) and is used to push the liquid material in the storage bucket (1) into the discharge nozzle (2).

2. The injection molding device according to claim 1, characterized in that: The driving structure (8) includes a driving motor (10), an installation frame (11) is fixed to the top of the storage bucket (1), a fixed cylinder (12) is fixed to the installation frame (11), the driving motor (10) is fixed to the fixed cylinder (12), the top of the connecting rod (5) penetrates through the top of the storage bucket (1), a rotating cylinder (13) is provided in the fixed cylinder (12), the top of the rotating cylinder (13) is fixed to the output end of the driving motor (10), and the bottom end is located inside the rotating shaft (4) and is rotatably connected to the rotating shaft (4). An embedding cavity (14) is provided in the rotating cylinder (13), a fixed rod (15) is fixed to the top of the connecting rod (5), and the fixed rod (15) is slidably fitted inside the embedding cavity (14).

3. An injection molding device according to claim 2, characterized in that: A communicating pipe (16) is fixed to the outside of the rotating cylinder (13), the inside of the communicating pipe (16) communicates with the embedding cavity (14), the communicating pipe (16) is located inside the fixed cylinder (12), a slider (17) is slidably provided in the communicating pipe (16), a pressing rod (18) is fixed to one side of the slider (17) away from the rotating cylinder (13), a first compression spring (19) is fixed inside the rotating cylinder (13), the movable end of the first compression spring (19) is fixed to the bottom of the fixed rod (15), limiting blocks (20) are uniformly fixed inside the fixed cylinder (12), a ball (21) is rotatably provided at one end of the pressing rod (18) away from the slider (17), and a second compression spring (22) is provided on the pressing rod (18). One end of the second compression spring (22) is fixed to the communicating pipe (16), and the other end is fixed to the pressing rod (18).

4. An injection molding device according to claim 3, characterized in that: A first guiding surface (23) is provided at one end of the slider (17) close to the embedding cavity (14), and a second guiding surface (24) is provided at the top of the fixed rod (15).

5. An injection molding device according to claim 4, characterized in that: A roller (25) is rotatably provided at one end of the slider (17) close to the embedding cavity (14).

6. The injection molding device according to claim 5, wherein: An arc surface (26) is provided on the inner side of the limiting block (20).

7. An injection molding device according to claim 6, characterized in that: The auxiliary structure (9) includes an auxiliary motor (27). An auxiliary frame (28) is fixed to the top of the storage barrel (1). The auxiliary motor (27) is fixed on the auxiliary frame (28). A main gear (29) is fixed to the output end of the auxiliary motor (27). A secondary gear (30) is fixed to the outer side of the top of the rotating shaft (4). The secondary gear (30) is meshed and connected with the main gear (29). A spiral plate (31) is fixed to the outer side of the rotating shaft (4).

8. An injection molding device according to claim 7, characterized in that: An annular frame (32) is provided at the bottom of the connecting rod (5). The top of the annular frame (32) is fixed to the fixed frame (6).

9. An injection molding device according to claim 8, characterized in that: Inclined surfaces are provided on both the upper and lower sides of the annular frame (32).

10. An injection molding device according to claim 9, characterized in that: The storage barrel (1) is conical.

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